If you are unable, or would prefer not to, pay by credit card, we will gladly accept payment from companies by invoice.


The process requires a small amount of paperwork to satisfy our ISO 9001 processes.  We will ask you to complete a New Client Form, complete with references.  Once this has been processed, we will request a Purchase Order or alternatively, ask you to sign a Confirmation of Order form.


Please note that for invoice purchases we have a minimum order quantity of 100 tests.